Mastic sealing for building owners and managing agents in Westerton, West Sussex
Need mastic sealing in Westerton? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Window mastic that has split and shrunk
- No planned programme for sealant
- A mix of products and colours from past repairs
Mastic sealing for Westerton sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Doing it in-house
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
How we handle mastic sealing in Westerton
Owners and agents typically inherit a building’s mastic rather than choose it, and it ages quietly: window perimeters, door frames, external joints and communal junctions all rely on it. When it hardens, splits or pulls away, water and draughts follow along with complaints. Site teams most often ask us about movement joints with sealant missing and leaks at window and door perimeters, across window and door perimeters on blocks, shopfronts below residential blocks and balcony and threshold joints. A specialist sealant contractor works differently from a general builder: in Westerton, that means joint design, primers and backing rod as standard.
For buildings around smaller places like Westerton, we group work so one trip covers it. Photos of each elevation help us quote accurately.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.
- Where
- Westerton (PO18)
- Wider area
- West Sussex
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Your questions answered
We manage a building near Chichester station. Can you help?
Yes, and several blocks can go on one quote. Send the address, photographs of the elevations and your access arrangements, and we’ll give a fixed quote.
Can you work in a care home near Westerton with residents in?
Yes. We work around residents’ routines, a room or two at a time. Any site rules, from signing in to infection control, are agreed before we start.
Can you seal joints high up on a block?
Access is discussed and agreed before the quote is fixed. Tell us the number of storeys and whether scaffold or other access is planned, and we’ll tell you how we’d approach it.
Do you work with property factors and landlords?
Yes. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.
Do you cover Westerton?
Yes. We cover Westerton, within our coverage of Greater London, South East England and Scotland. For a quote, call 01277 525 020 or send details through our quote form.
Will you just go over the old sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
What if the old mastic contains asbestos?
In older buildings, old mastic can contain asbestos. We check the asbestos register or survey before disturbing it, and if it’s suspected, work stops until it’s tested.
Do you need mastic sealing in Westerton?
In communal areas, joints take knocks from bins, bikes, buggies and deliveries, and low-level joints get damaged. Cleaning products add to the wear.
Look out for the following:
- Complaints coming in block by block
- Failed external movement joints
- Old repairs sealed over failed mastic
- Draught complaints from residents or tenants
Site managers at schools like The March CofE Primary School can fit frame mastic into the summer works.
Comparing quotes
- Health and safety accreditation such as CHAS
- Their plan for phasing and protecting the area
- What site paperwork they can supply
- How joint depth will be controlled
For managing agents and facilities managers
Main contractors use us as their sealant subcontractor. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
Diagnose, treat, sign off
Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then handed back before the next one starts. For a building around Westerton, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- A building-by-building inspection lists the failed joints.
- The quote is fixed and split as suits you.
- Dates and areas are agreed so occupiers can be told.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
What we need from you
- Confirm the product named in the specification
- Tell us which areas need to stay in use
- For older buildings, check the asbestos register before work
Ask for a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, phone 01277 525 020 or send details through our quote form.
Advice
What affects the price in Westerton
Sealant work doesn’t have a standard rate, because every site is different. What we take into account:
- The total length or number of joints
- Which sealant the job calls for
- The site’s rules and procedures
- Access and working height
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What to include in your enquiry
Diagnosis starts before we arrive. Tell us:
- How the joints are reached, and at what height
- Approximate linear metres or a joint schedule
- What the building is and how it’s used
- The postcode of the building
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, call 01277 525 020 or email drawings and photos.
What we can’t put right
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Leaks from above rather than through a joint
- Failed window or door frames, which need a window contractor
- Materials that need asbestos testing before work
Not sure which it is? You can speak to us on 01277 525 020 or email a schedule or drawings and we will tell you honestly.
Surfaces we seal
- Communal entrances and stairwells
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Balcony and threshold joints
- Window and door perimeters on blocks
- External wall and movement joints
Block-wide mastic in Westerton
The South East is one of the drier parts of the UK. Outside mastic still needs a dry joint and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first. Two care or nursing homes sit less than 2 miles from Westerton. Owners of care premises can bring window and door mastic into a phased programme planned around the home.
Churches, halls and community buildings such as The Parish Church of St Peter are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. Landlords with units on estates such as Temple Bar Business Park (to the east of Westerton) can bring frame, door and external mastic across several units into one programme.
Westerton is about 2 miles north-east of Chichester, in West Sussex. Any commercial site in Westerton is covered, for single jobs and planned programmes alike. Across West Sussex, 373 places are covered, including Westerton. There’s a separate page for Portsmouth, about 15 miles away.
Business premises anywhere in PO18 are within our area for mastic joints. Sites close to Westerton are covered too, including Strettington (1 mile east), Waterbeach (1 mile north-east), Maudlin (1 mile south), Westhampnett (1 mile south-west) and Shopwyke (1 mile south). Nearby towns on our patch include Worthing (15 miles east), Bognor Regis (5 miles south-east), Selsey (9 miles south), Littlehampton (10 miles east), Rustington (11 miles east) and Storrington (14 miles east).
Landmarks near Westerton
In Westerton, that means premises near Chichester High School For Girls, Westbourne House School and The Coach And Horses Public House. The closest station to Westerton is Chichester station, about 2.5 miles south-west. Well-known places in the area include Chichester Castle (2 miles south-west) and Chichester Centre (1.5 miles south-west). The countryside around Westerton includes Kingley Vale National Nature Reserve and Levin Down.